Não informado. (1970). Review of Regional Studies. Southern Regional Science Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Review of Regional Studies. Birmingham, Ala: Southern Regional Science Association, 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Review of Regional Studies. Southern Regional Science Association, 1970.
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